A new study provides the most accurate estimate of the frequency that planets that are similar to Earth in size and in distance from their host star occur around stars similar to our sun. Knowing the rate that these potentially habitable planets occur will be important for designing future astronomical missions to characterize nearby rocky planets around sun-like stars that could support life. A paper describing the model appears Aug. 14, in The Astronomical Journal.Thousands of planets have bee... ASTRO WATCH · 1 month
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New research by astrophysicists reveals how the gas and energy expelled by stars are returned to the universe, and in what forms. It also... more
The dark side of extrasolar planets share surprisingly similar temperatures  SCIENCE DAILY · 3 weeks
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Scientists developing single photon detector to help search for habitable exoplanets  nanowerk · 4 days
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Physicists design an experiment to pin down the origin of the elements  PHYS.ORG · 4 weeks
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Experimenting at 4.1 million degrees Fahrenheit, physicists at Sandia National Laboratories' Z machine have found that an astronomical model—used for 40 years to predict the sun's... more
Newly Discovered Giant Planet Slingshots Around Its Star  ASTRO WATCH · 2 weeks
Astronomers have discovered a planet three times the mass of Jupiter that travels on a long, egg-shaped path around its... more
Experiments at temperature of sun offer solutions to solar model problems  SCIENCE DAILY · 6 days
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Afterglow of Colliding Neutron Stars Would Outshine Our Sun  LIVE SCIENCE · 6 days
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Image: Hubble spots a swarm of stars  PHYS.ORG · 1 week
This image from the NASA/ESA Hubble Space Telescope shows a dwarf galaxy named UGC 685. Such galaxies are small and contain just a tiny fraction of the number of stars in a galaxy like... more
Earth's fingerprint hints at finding habitable planets beyond the solar system  SCIENCE DAILY · 3 weeks
Astronomers have assembled a 'fingerprint' for Earth, which could be used to identify a planet beyond our Solar System capable of supporting life. more
Busy Older Stars Outpace Stellar Youngsters, New Study Shows  ASTRO WATCH · 2 weeks
The oldest stars in our Galaxy are also the busiest, moving more rapidly than their younger counterparts in... more
Astronomers determine earth's fingerprint in hopes of finding habitable planets beyond the solar system  PHYS.ORG · 3 weeks
Two McGill University astronomers have assembled a "fingerprint" for Earth, which could be used to identify a planet beyond our... more
Frequent flaring of Proxima Centauri means bad news for its rocky planet  PHYS.ORG · 2 weeks
Proxima Centauri is a cool red dwarf with about one-eighth of the sun's mass. Although it is the closest star to the sun, located... more
A Goldilocks zone for planet size  SCIENCE DAILY · 6 days
Researchers have described a new, lower size limit for planets to maintain surface liquid water for long periods of time, extending the so-called Habitable or 'Goldilocks'' Zone for small, low-gravity planets. This research expands the search... more
Busy older stars outpace stellar youngsters  SCIENCE DAILY · 3 weeks
The oldest stars in our Galaxy are also the busiest, moving more rapidly than their younger counterparts in and out of the disk of the Milky Way, according to a new analysis. more
Recipe for planets  PHYS.ORG · 6 days
It's not every day that clues about the origin of our solar system fall from the sky, but one Victoria University of Wellington researcher has found just that—in a meteorite that collided with Earth 50 years ago. more
The Rare Molecule Weighing in on the Birth of Planets  ASTRO WATCH · 13 hours
Astronomers using one of the most advanced radio telescopes have discovered a rare molecule in the... more
Newly discovered giant planet slingshots around its star  PHYS.ORG · 3 weeks
Astronomers have discovered a planet three times the mass of Jupiter that travels on a long, egg-shaped path around its star. If this planet were somehow placed into our own solar system,... more
Measuring stellar oscillations with Kepler  PHYS.ORG · 2 weeks
The Kepler satellite is famous for its discovery of thousands of exoplanets by continuously and meticulously measuring the brightnesses of over half-a-million stars for the signatures of transiting exoplanets. Less well known are the revolutionary consequences of its... more
Newly discovered giant planet slingshots around its star  SCIENCE DAILY · 3 weeks
Astronomers have discovered a planet three times the mass of Jupiter that travels on a long, egg-shaped path around its star. If this planet were somehow placed into our own solar system,... more
How to spin a disk around young protostars  PHYS.ORG · 2 weeks
How do stars and planets form? Scientists are now one step closer to pinning down the conditions for the formation of proto-stellar disks. Observations of three systems in the early stages of... more
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